Quiz 2

• Where does most digestion happen in the body?

  small intestine
• What mechanical movement does the mouth make?

  chewing
• What mechanical movement does the stomach make?

  churning
• Where does absorption occur within the small intestine?

  The villi, greatly increases surface rea
• What are the absorptive cells within the intestine?

  enterocytes
• What is peristalsis?

  Muscular contractions that move food through the digestive system.
• What is segmentation within the intestines?

  allows for more contact area with the intestinal wall
• How does the liver contribute to digestion?

  produces bile, also extra digestive enzymes
• How does the gall bladder contribute to digestion?

  bile storage
• What produces bicarbonate?

  Pancreas
• How does the pancreas contribution to digestion?

  Insulin and digestive enzymes.
• What enzymes does the mouth have?

  lingual lipase, salivary amylase?
• What enzymes does the stomach have?

  pepsin, lipase
• What enzymes does the pancreas?

  protease, pancratic amylase + lipase
• What is the esophageal sphincter?

  controls the flow of food from the mouth to the stomach.
• What is the lower esophageal sphincter?

  controls the flow of food from the esophagus to the stomach
• What is the pyloric sphincter?

  controls flow of food from the stomach to the small intestine
• What is the ileocecal sphincter?

  conjoins the small and the large intestine
• What is the sphincter of oddi?

  Muscle that controls the flow of bile and pancreatic juices into the duodenum
• What is the urethral sphincter?

  controls the flow of urine out of the body
• What is the internal anal sphincter?

  involuntary contractions
• What is the external anal sphincter?

  voluntary contractions
• What is absorbed through passive transpiration into the cell?

  water, some minerals, glucose
• What happens within the large intestine?

  extra absorption, fecal formation
• Where is bile secreted from into th small intestine?

  from the liver to the gall bladder
• What is anabolism?

  building of larger molecules
• What is catabolism?

  BREAK
• What is a dehydration reaction?

  breaking of a larger molecule, a water byproduct is common
• What is a hydrolysis reaction?

  adding water to a compound
• What is an oxidation reaction?

  removal of electrons
• What is a redox reaction?

  addition of electrons